When you’re away from home and send an email message using your home email account, your email message might be returned with a 550, 553, or relay-prohibited error message. The same situation could occur when you’re away from your office and try to send an email message using your work email account.
- “Error 553” appears and crashes the active program window.
- Your PC frequently crashes with Error 553 when running the same program.
- “Microsoft Outlook Error Code 553” is displayed.
- Windows runs sluggishly and responds slowly to mouse or keyboard input.
- Your computer periodically “freezes” for a few seconds at a time.
Causes of Error 553-
- Corrupt download or incomplete installation of Microsoft Outlook software.
- Corruption in Windows registry from a recent Microsoft Outlook-related software change (install or uninstall).
- Virus or malware infection that has corrupted Windows system files or Microsoft Outlook-related program files.
- Another program maliciously or mistakenly deleted Microsoft Outlook-related files.
Common variations of the 553 email error-
- 553 5.7.1 Not an open relay, so get lost
- 553 Invalid user.
- 553 message blocked, you are not authorized to send mail, authentication is required.
- 553 Null Sender is not allowed.
- 553 5.1.1 sorry, no mailbox here by that name.
- 553 #5.1.8 Domain of sender address <email@example.com> does not exist
- 553 5.3.0 <recipient@RemoteDomain.com>… Address does not exist
- 553 5.3.0 <recipient@RemoteDomain.com>… No such user
- 553 5.3.0 <recipient@RemoteDomain.com>… No such user here
- 553 5.3.0 <recipient@RemoteDomain.com>… User unknown, not local address
- 553-Message filtered. Please see the FAQs section on spam\n
- 553 <recipient@RemoteDomain.com> does not have a mailbox here
- 553 RemoteDomain.com does not accept mail sent to recipient@OtherRemoteDomain.com
- 553 sorry, no mailbox here by that name. (#5.1.1)
- 553 sorry, no mailbox here by that name (#5.1.1)
- 553 sorry, rcpt user invalid (#5.7.1)
- 553 sorry, that domain isn’t in my list of allowed rcpthosts
- 553 sorry, that domain isn’t in my list of allowed rcpthosts (#5.7.1)
- 553 sorry, the recipient in not a valid user on this domain (#5.7.1)
- 553 sorry, this recipient doesn’t exist.
- 553 sorry, this recipient is not in my valid rcpt to list (#5.7.1)
- 553 sorry, your envelope sender is in my bad mail from list (#5.7.1)
- 553 Your email address is denied.
To resolve this issue check the checkbox next to “My Server Requires Authentication”…
- Open Outlook Express
- Click Tools and then Accounts
- Click the ‘Mail’ Tab
- Click Properties
- Click the ‘Server’ Tab
- Check the checkbox next to “My Server Requires Authentication”
- Click Ok
- Click Close
For Outlook 2003 and up-
- Open Outlook 2003
- Click Tools
- E-Mail Accounts
- View or change existing e-mail accounts
- Select the email account
- Click Change
- Click ‘More Settings’
- Click the ‘Outgoing Server’ Tab
- Check the checkbox “My outgoing server (SMTP) requires authentication”
- Click OK
- then Next